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Can I add a UNIQUE constraint to a PostgreSQL table, after it's already created?
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answered Jul 28 '09 at 14:30
hhaamuhhaamu
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How to percent-encode URL parameters in Python?
...man
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answered Nov 8 '09 at 2:52
Nadia AlramliNadia Alramli
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is of a type that is invalid for use as a key column in an index
...ow and will only use the first 900 bytes even then so the safest maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQUE NOT NULL,
[value] nvarchar(max) NOT NULL
)
i.e. the key can't be over 450 characte...
Difference between Xcode version (CFBundleShortVersionString) and build (CFBundleVersion)
...any build, released or not. Also, CFBundleShortVersionString can be localized, though I don't know why you'd want to, since they say it is supposed to be "a string comprised of three period-separated integers". For a release build, it would be reasonable to make the two numbers the same. For a de...
How to change ViewPager's page?
...lison
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How can I make a JUnit Test wait?
...elMuel
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Unresolved external symbol on static class members
...est::X;
unsigned char test::Y;
somewhere. You might want to also initialize a static member
unsigned char test::X = 4;
and again, you do that in the definition (usually in a CXX file) not in the declaration (which is often in a .H file)
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How to set up a git project to use an external repo submodule?
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What is digest authentication?
...ey match then access is granted, otherwise it can send back a 401 Unauthorized (no login or failed login) or a 403 Forbidden (access denied).
Digest authentication is standardized in RFC2617. There's a nice overview of it on Wikipedia:
You can think of it like this:
Client makes request
Client ...
Intersection of two lists in Bash
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